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السيوطي:١٩٠٥٣a

"مَا عَمِلَ ابْنُ آدَمَ فِي هذَا اليَوْمِ أفْضَل مِنْ دم يُهرَاقُ إِلَّا أنْ يَكُونَ رَحِمًا مَقطُوعَة تُوصَلُ".  

[طب] الطبرانى في الكبير عن ابن عباس

See similar narrations below:

Collected by Ṭabarānī
tabarani:10948ʿAbdān b. Aḥmad > Hishām b. Khālid > al-Ḥasan b. Yaḥyá al-Khushanī > Ismāʿīl b. ʿAyyāsh > Layth > Ṭāwus > Ibn ʿAbbās

[Machine] The Messenger of Allah ﷺ said on the day of Eid al-Adha: "There is no deed that the son of Adam can do on this day that is better than shedding blood (sacrificing an animal), except if it is sacrificing a severed womb (cutting family ties)."  

الطبراني:١٠٩٤٨حَدَّثَنَا عَبْدَانُ بْنُ أَحْمَدَ ثنا هِشَامُ بْنُ خَالِدٍ ثنا الْحَسَنُ بْنُ يَحْيَى الْخُشَنِيُّ عَنْ إِسْمَاعِيلَ بْنِ عَيَّاشٍ عَنْ لَيْثٍ عَنْ طَاوُسٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

قَالَ رَسُولُ اللهِ ﷺ فِي يَوْمِ أَضْحَى «مَا عَمِلَ ابْنُ آدَمَ فِي هَذَا الْيَوْمِ أَفْضَلَ مِنْ دَمٍ يُهَرَاقُ إِلَّا أَنْ يَكُونَ رَحِمًا مَقْطُوعَةً تُوصَلُ»